Child safety seat



FIG. 1 is a perspective view of child safety seat showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The portions of the child safety seat shown in broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for child safety seat, as shown and described. 